2021 Mercedes-Benz GLS-Class

MSRP range: $76,000 - $132,100
Edmunds suggests you pay$73,860

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2021 Mercedes-Benz GLS-Class Review

  • Best in comfort and easily seats adults in all three rows
  • Plenty of helpful technology and safety features
  • Responsive engines and stable handling give the feel of driving a smaller SUV
  • Flexible cargo capacity
  • Some interior controls and buttons are too small or hard to find
  • New AMG GLS 63 model
  • Minor revisions to standard feature content
  • Part of the third GLS generation introduced for 2020

The 2021 Mercedes-Benz GLS is Mercedes' large three-row luxury SUV. It received a thorough redesign last year, and it has earned a top spot in our rankings due to its high levels of luxury, refinement and technology. This year, Mercedes has expanded the GLS lineup with the performance-focused AMG GLS 63 S. Sure, there are plenty of luxury three-row SUVs out there. But few of them make 600 horsepower.

The GLS offers a genuinely comfortable space for six or seven adults, making it ideal for chauffeuring a growing family around or driving partners at the firm out to lunch. Adding the AMG GLS 63 trim just means that there's no ceiling to the expectations Mercedes buyers have of their SUVs, or how much they're willing to pay. Interested? Get our full in-depth analysis on the 2021 GLS by reading our Expert Rating below.

EdmundsEdmunds' Expert Rating
Rated for you by America’s best test team
The GLS quickly impresses with its excellent combination of comfort, performance and technology. It takes everything we enjoy about the top-rated GLE SUV and puts it into a larger, more potent package, and it might just be one of the most well-rounded vehicles on sale today.
The raw numbers are frankly astounding and, on paper, suggest a much smaller and far sportier vehicle. Our GLS 450 test vehicle sprinted from 0 to 60 mph in 6.2 seconds, which is more than adequate for a luxury SUV with a base engine. It feels strong too, no matter what situation you're driving in. The engine's mild hybrid system improves both performance and efficiency and makes for super-smooth power delivery. Our biggest complaint: occasional hiccups from the transmission.

Stops from 60 mph came in just 105 feet, one of the best results we've seen from any SUV. That's genuine performance-car territory. Part of that comes courtesy of the no-cost summer tires that our test SUV had, which help provide plenty lateral grip too. The steering is light and makes the GLS easy to maneuver in a parking lot or in traffic.
Mercedes-Benz nailed it when it comes to on-road comfort. The seats are supportive and hugely adjustable, and optional massagers help keep you comfortable after a few hours behind the wheel. The heated and ventilated seats work well, and the automatic climate control quickly evens out cabin temperatures.

There's little intrusion from the outside world, with just a bit of road noise on rough pavement. The ride quality is excellent with the optional E-Active Body Control suspension. It's smooth and composed, ironing out most road imperfections without floating or wallowing. Large wheels can hurt ride quality in many SUVs, but our test vehicle with optional 21-inch wheels didn't seem fazed.
The GLS' interior is excellent from almost every perspective. The driving position is upright and commanding, but you always feel comfortably ensconced in the GLS. There's plenty of room in all three rows, and 6-foot-plus adults can fit comfortably in the easy-to-access third row. The large windows help all-around visibility and make passengers in the rear feel less claustrophobic.

The controls are all well placed and easy to reach, but there's a lot of them and the small text means you have to take your eyes off the road until you work up the muscle memory. Separating the seat controls between the door and the infotainment system is a bit frustrating too.
Mercedes' infotainment system is a marvel and benchmark for the class even if the learning curve is a bit steep. The navigation system in particular is a standout, and the augmented reality overlay and turn-by-turn directions in the instrument cluster and head-up display are compelling reasons to ditch the apps on your phone. That said, both Apple CarPlay and Android Auto are standard. All three rows have USB-C ports, and a standard wireless charging pad sits in front of the cupholders.

The driver aids are equally impressive. The adaptive cruise control is among the best we've tested. In traffic, the system maintains a reasonable gap and can slow the GLS down to a complete stop, then start going again when traffic moves.
With the seats down, the GLS' cargo area offers up to 84.7 cubic feet of cargo area behind the front seats. Space drops to 17.4 cubes with all the rows upright, which isn't enough to haul luggage for every passenger. Space is decent enough for the class, though the GLS trails the cavernous Navigator, which offers up 103.3 cubic feet behind the front seats.

The second and third row seats fold flat and can be dropped with buttons in the hatch. Small-item storage is great, with lots of pockets, bins and cupholders spread throughout the cabin. The GLS 450 is rated to tow 7,700 pounds, which places it ahead of its main rival, the BMW X7. Should towing be a high priority, the Lincoln Navigator is again superior, capable of towing 8,300 pounds.
The EPA puts fuel economy at 21 mpg combined (19 city/23 highway), impressive numbers for a vehicle this big and capable. On our evaluation loop, the GLS matched the 21 mpg combined rating. The GLS returned 19 mpg over extended driving distances through mixed traffic and loaded with passengers and cargo.
The GLS isn't cheap, but nothing at this price point can match its impressive build quality. Options can add up quickly, but the GLS is no worse than other luxury SUVs. No other competitor puts together such a well-appointed package for less money. The four-year/50,000-mile bumper-to-bumper warranty is average for the class.
The GLS delivers everything you expect from a Mercedes-Benz vehicle. It packs a clean, understated design, and it's loaded with the latest and greatest tech. Luxury vehicles shouldn't make you work, and the engine provides smooth, effortless power. It sounds good too, especially at full acceleration. It's easy to drive and just a generally nice place to spend an hour or 10 behind the wheel.

Which GLS-Class does Edmunds recommend?

We think that most people should opt for the GLS 450. Its six-cylinder engine has sufficient power and nets better fuel efficiency than the V8 models. It's also generally available with the same standard and optional features. The main reason to consider the V8-powered GLS 580 or AMG GLS 63 is if you plan on doing a lot of towing. Either way, make sure to get the Driver Assistance Package Plus since it adds some desirable features, including adaptive cruise control.

Mercedes-Benz GLS-Class models

The 2021 Mercedes-Benz GLS-Class is a three-row luxury SUV available in three main versions: GLS 450, GLS 580 and AMG GLS 63. Each has a robust set of standard features, with plenty more available as options. The trim levels mainly differ by the engine. We review the ultra-luxurious Maybach GLS separately on Edmunds. Feature highlights include:

GLS 450
The base trim GLS comes equipped with:

  • Turbocharged six-cylinder (362 hp)
  • Nine-speed automatic transmission
  • All-wheel drive
  • Adaptive air suspension system (can raise or lower the ride height of the vehicle and adjust to improve ride comfort and handling)
  • Seating for seven people
  • Sunroof
  • Heated and ventilated front seats
  • Adaptive LED headlights
  • Customizable ambient interior lighting
  • Four-zone climate control
  • Simulated leather upholstery (MB-Tex)

Technology features include:

  • MBUX infotainment system with dual 12.3-inch displays
  • Burmester surround-sound system
  • Smartphone integration with Apple CarPlay and Android Auto
  • Wireless charging pad
  • Nine USB ports
  • Navigation
  • Keyless entry and ignition

Every GLS also comes with:

  • Forward collision mitigation (warns you of an impending collision and applies the brakes in certain scenarios)
  • Blind-spot monitoring (alerts you if a vehicle in the next lane over is in your blind spot)
  • 360-degree camera system (gives you a top-down view of the GLS and its surroundings for tight parking situations)
  • Automated parking system (steers into a parking spot with little or no driver intervention)

GLS 580
Adds the following features:

  • Twin-turbo V8 (483 hp)
  • Five-zone climate control
  • Leather upholstery
  • Upgraded multi-contour front seats with massage

Focuses on performance with:

  • More powerful twin-turbo V8 (603 hp)
  • High-performance brakes
  • Sport suspension
  • More supportive seats with AMG badging
  • Heated and cooled front cupholders

The GLS comes well equipped on its own, but Mercedes-Benz offers an assortment of styling, comfort and technology options. Be on the lookout for:

  • Driver Assistance Package Plus
    • Adaptive cruise control (adjusts speed to maintain a constant distance between the vehicle and the car in front)
    • Lane keeping system (makes minor steering corrections to help keep the vehicle centered in its lane)
    • Evasive steering assist (enhances the forward collision mitigation system with steering-based collision avoidance)
    • Speed limit assist (detects and displays posted speed limit signs on the instrument panel,  alerting you if the limit is exceeded)
  • E-Active Body Control (upgraded suspension that can lean the GLS into turns to improve passenger comfort; GLS 580 only)
  • Second-row captain's chairs (six-passenger capacity)
  • Upgraded second-row seating (Executive Rear Seat package)
  • Rapid-heating front seats with heated front armrests and upper door panels
  • Head-up display (displays important information in your sight line on the windshield)
  • Enhanced insulation from cabin noise (Acoustic Comfort package)
  • Upgraded Burmester sound system
  • Panoramic sunroof
Latest Mercedes-Benz News from Edmunds
Mercedes Finally Has a Tesla Competitor With the 2022 Mercedes-Benz EQS

Consumer reviews

Read what other owners think about the 2021 Mercedes-Benz GLS-Class.

Average user rating: 5.0 stars
2 total reviews
5 star reviews: 100%
4 star reviews: 0%
3 star reviews: 0%
2 star reviews: 0%
1 star reviews: 0%

Trending topics in reviews

  • interior
  • seats
  • electrical system
  • cup holders
  • transmission
  • lights
  • infotainment system
  • ride quality
  • acceleration
  • handling & steering
  • reliability & manufacturing quality
  • comfort

Most helpful consumer reviews

5/5 stars, 4.74 Stars, Almost perfect, but...
Jay Poocha,
GLS 450 4MATIC 4dr SUV AWD (3.0L 6cyl Turbo gas/electric hybrid 9A)
Over the years, we have owned many Luxury SUVS and a few mini-vans. We purchased a 2021 GLS 450 in early November 2020. As of today, we have driven 25,402 miles! That's not a typo. In a very short period of time, we have discovered the strengths and weaknesses of the GLS. The strengths: 1. Overall comfort, especially the front seats, is awesome. 2. The added massaging seats is a nice option (get it, you won't be disappointed on long trips). 3. The ride is smooth on the highway and around town; however, I prefer to use the individualized setting option for the sports suspension on the highway to firm up the ride, otherwise it can be a tad floaty. I prefer a stiffer, more controlled ride. 4. Passing is done with ease at speed; however the 450 holds gears a bit long when rapidly accelerating. It eventually finds its place after a brief struggle. Not bad, but not perfect. After driving 25K in a very short period of time, I would like MB to strongly consider improving a few areas in the cabin: 1. The cell phone ports (only usb c type) must be better placed. They are extremely difficult to plug cords into, plus need some type of ambient lighting to see at night. The wireless charging pad is a pain in the rear to use with a case on a telephone. The space is extremely tight. This must be corrected at some point. The power outlet in the second row is horribly placed. In fact, MB get a F- for its placement, and another F for the amount of space allocated for any charging bases larger than standard size. Just the worst of anything we have ever owned. Outside of these minor issues, my wife wishes MB would add a place for cellphones besides the cupholders or wireless charger area. This is an obvious deign oversight. Second row comfort in the captain's chairs is good, but I would strongly considering getting it with the bench in the future for the center armrest. Although the captain's seats are comfortable, again MB needs to add more places for storage. The third row works for smaller adults and children. We occasionally use it, it works for the occasional trip when are children are traveling with us. The real trick is placement of luggage; three suitcases and a duffle is tight - this requires folding one of the third row seats flat. Although not ideal, it works. For ultimate convenience, I would suggest either a Cadillac ESV or, bite my tongue - a fully loaded Chrysler Pacifica. Having owned both these other vehicles, I can say luggage space is rarely an issue. This leads me to my final thoughts on the GLS, I really like it a lot, its almost perfect except for the few issues I outlined. If MB can address the charging issues, phone placement issues and tweak the trans on shifting on the middle range when accelerating, it is hands down a superior SUV for long trips, daily comfort and drivability around town. It feels rock sold on the highway and does extremely well in rain. If you desire luxury, a very solid feeling ride, solid handling and decent MPG (I'm averaging about 23 MPG) I highly recommend the GLS.
5/5 stars, SUV w/ muscle
AMG GLS 63 4dr SUV AWD (4.0L 8cyl Twincharger gas/electric hybrid 9A)
Great quality, and performance. Takes time and study to familiarize the new electronics which differ from my 2019 S class and E class.

2021 Mercedes-Benz GLS-Class video

[MUSIC PLAYING] CALVIN KIM: The car behind me is the all new Mercedes Benz GLS 450. It's Mercedes Benz's top-dog three-row SUV. So Mercedes Benz has a lot of SUVs. And they've launched a couple of new ones recently, like the GLE and the G-Wagen Where does the GLS fit amongst those two? Well, the G-Wagen is the off-roadable one. It's the style one. The GLE is the practical one. It's more fuel-efficient. It's a little bit smaller, but it has all the features. The GLS has the size and the features all rolled into one. It's a three-row full size, and what that means for Mercedes is full-grown adults can fit in that back row. It's got MBUX, their all-new award-winning infotainment system. It's got EQ boost, which is some power adding crazy thing. It's got 48-volt suspension, because who knew you could have electric suspension? I can't wait to see how all this stuff works, especially the off-road mode. But before we get into it, make sure to subscribe to Edmunds's YouTube channel, and check us out on Edmunds.com. We're in the GLS 450 right now. That means it's got a 3-liter inline-six engine that's turbocharged. Nothing too crazy here, but Mercedes is using this technology called EQ boost. And what that is it uses the 48-volt system to also boost up the engine. Engine-wise, there's two choices. You can get a V8 or an inline-six. And normally you'd think, for a car this big, you'd want the V8. But actually, there's some benefits to the inline-six. Obviously, you get a little bit more fuel economy. And because of the EQ boost system, the 48-volt integrated starter generator, it has a seamless auto start-stop, and when you get on the throttle, it gives you a little bit of electric boost along with the turbo. The engine feels a lot spritelier and a lot torquier than you'd think. And frankly, I don't know if you'd really need the V8. Both the inline-six and V8 are all-wheel drive and have a nine-speed automatic transmission with flappy paddle shifters. That's really nice when you're going on a long downhill, like we are now. So you can kind of hold the gear, and that way, you're not riding the brakes as much. The all-wheel drive system is adaptive, meaning you can send power to the front and rear as you see fit. It's all stuff you'd don't have to worry about. The computers take care of all that for you. Frankly, you can just hop in this thing, leave it all on auto and comfort mode, and never notice a thing. But for the car enthusiast that knows how to push the right buttons, there is a ton of a just ability for literally everything. There's some hand-me-down technology from the GLE, and frankly, there's nothing wrong with that. One of the big ones is the 48-volt suspension system. Here in the GLS, its much bigger weight shows off the capabilities, I think, a little bit better. One of the advantages to this system is curve control. It is crazy. It pumps up the outside shocks when it knows you're in a corner, and actually leaves the whole car into the turn. If you're seeing what I'm seeing, it looks like you're flying in a plane or on a motorcycle. It's absolutely surreal to experience initially, but you get used to it. And frankly, you wonder how you drove a car without it. This is the only way to fly. The Mercedes engineers are very specific in mentioning that this new GLS is slipperyer through the air than the old GLS. Now, granted, they're both big cars, but the benefit for having this low air resistance isn't so much in high-speed highway driving, it's in wind noise. And frankly, it's a library in here. Mercedes calls the GLS the S-class of SUVs, and all that might be stretching it a little bit-- after all, there's no fiber optic roof here-- it comes pretty close. And in fact, out of all of the other three-row SUVs on the market, yeah, I think this might take the crown for luxury. It's certainly the benchmark, from my perspective. MBUX is a full-feature infotainment system that controls just about every aspect of the GLS. It relies on voice, haptic touchpad, and a touch screen to control all the functions. With MBUX, you control the navigation, the infotainment, the climate control, seat massaging-- everything related to the operation of the vehicle. Maybe I'd like to get a little bit of a back rub. Hey, Mercedes. SPEAKER 1: How may I help you? CALVIN KIM: Turn on my seat massager. SPEAKER 1: I'm switching on massage. CALVIN KIM: That's luxury. One of the good things about having the infotainment system be completely integrated into the car is the fact that you can set up different modes or presets on how you operate the car. Mercedes calls them themes. For example, in this car, we have an off-road mode. And simply by scrolling through all the different themes, we can go to the adventure theme, and it's right now switching the car to off-road mode. I'm getting a different display in the dash that shows my pitch and roll. And when I slow down, the cameras will turn on to show me the surroundings, so I don't inadvertently run over a sharp pointy rock. Conversely, when I'm ready to get back on the highway, I can just switch my theme to, let's say, the sport plus experience. Nice. So what this display's showing you is the active ride control in action. There's a camera overhead that's looking down at the road surface and scanning it, and seeing where the undulations are. And it's preemptively adjusting the active part of the suspension. Other active body control systems have an artificial feeling that kind of messes up with your [INAUDIBLE] and your ear, but on the GLS, it's absolutely seamless. It just feels like this is the way it's supposed to be. There's a lot going for the GLS, but it's not perfect. You either love MBUX or you hate it. A lot of us love it because it's easy and we understand that there is a lot of technology behind the scenes that MBUX has made very simple. Now, if you don't like technology, you're going to have a problem with it. The interior of the GLS follows suit with the rest of the Mercedes Benz product lineup. In fact, a lot of the controls will seem familiar to anyone that's seen any of the newer cars. And that's a good thing. The steering wheel has a lot of controls on it. And it looks daunting at first, but it's actually very logically laid out. Cruise control is on one side, and the audio and phone stuff is on the other. But we particularly like how the climate control is all hardware-based. Now, there is a common control menu for the more advanced functions, but all of your general controls that you'll use on an everyday basis fall right to hand. Another good thing about the GLS is a superfluous amount of US ports. Mercedes says there are 11, but you're going to need USB-C cables, because that's the only thing inside the car. And there's these cool little foam-joggy dial things that used to swipe and maneuver to navigate the different menus. Overall build quality on the GLS is excellent. The story's is the same back here in the second row. It's very roomy, meant for full-size adults. You get your own climate control system controls, two USB jacks, and 1 10 jack. Even in the bench configuration, the second row seats are fully adjustable, and they have heating, as well. This particular seat also has the backrest fold down functionality of 40, 20, and 40. And of course, you don't have to lift a finger to do that. Just a flick of a switch unlocks the control and takes care of your loading issues. But here in the back row is where the big news is. Mercedes Benz went on record saying a 6 foot 4 adult male could fit back here. I'm sure they could. I'm 6' foot tall exactly, and I have just enough knee room, and of course, a ton of headroom. And the seats themselves are very comfortable. I think the one odd thing about it though is this headrest. Normally it's in the down position for visibility, but when it's in the full up position, it's a little bit long, and it gets into my shoulder blades a little bit. I guess it's good if you have a little itch back there. But one of the cool touches that Mercedes put in is they made sure that the third row passenger can get in and out all by themselves. Just of course, one touch of a button and voila. Sure, the insides are nice, the seats are comfy, but true luxury means not having to fiddle with knobs and levers to recline the seats. So Mercedes Benz gives us the benefit of having one-touch fold down for all two rows. [MUSIC PLAYING] For those of you with sharp eyes, you'll notice I'm in a different car. And that's right. I'm in the GLS 580. And it's got a twin turbo charged V8, but it too has the EQ system so that you have no turbo lag and a ton of torque. Even sharper eyes also notice it's kind of bumpy. That's because we're on a dirt road. We're here to test the off-road capability of the GLS. If you get the off-road package, you get a low range, you get underbody protection, and you get additional software stability control maps. What that means is you can handle off-roading a lot better than you'd think. Now, normally, when most people think of three-row SUVs, they think family-mobile. If anything, this is the one that the adventuresome person should buy. In fact, just about every truck and SUV that has a low range, when you engage it, it locks the center differential, which makes doing take turns nearly impossible. GLS also does something a little bit smarter. It actually unlocks the center differential and yet still has enough clapping force to make sure there's power going to all four wheels. What that means to you, as the driver and passengers-- it's just a lot more comfortable ride. There's no brakes locking up. There's no odd adverse reactions. The car just simply climbs up the corner. So now, we're doing a lot of rutted out driving, and there's a stream going down the path. This kind of train is what separates the real off-roadable SUVs from the crossovers. And of course, the GLS has no problems doing any of this because they factored all of this into it. All these systems allow a person that really likes to go off-roading and really likes to explore new unique places the ability to do it without compromising the luxury ride Monday through Friday. So you can wear your business suit to work, and then where you're off-roading suit on the weekends. [MUSIC PLAYING] Who is the GLS for? I think, for certain people, it will absolutely be just a regular SUV. But for the creative-minded, the adventuresome, the GLS presents a lot more functionality, a lot more features than I think a lot of people are going to give it credit for. Yeah, there are other SUVs that are a little bit more off-roadable-- the Land Cruiser and the Range Rover immediately spring to mind-- but none of them feature the GLS's massive interior space, and the MBUX infotainment system, the comfort, the quietness, and of course, the EABC, the Electronic Active Body Control system that makes the ride truly like a magic carpet. Yeah, it doesn't have the je ne sais quoi of the S-class's ultimate luxury, but this thing can go off road, man. S-class can't do that. Do you like off-roading? Do you like luxury cars? If you want to see more videos like this, be sure to subscribe to Edmunds.com. [MUSIC PLAYING]

2020 Mercedes-Benz GLS Review & First Drive

NOTE: This video is about the 2020 Mercedes-Benz GLS-Class, but since the 2021 Mercedes-Benz GLS-Class is part of the same generation, our earlier analysis still applies.

Features & Specs

MPG & Fuel
20 City / 24 Hwy / 21 Combined
Fuel Tank Capacity: 23.8 gal. capacity
7 seats
Type: all wheel drive
Transmission: 9-speed shiftable automatic
Inline 6 cylinder
Horsepower: 362 hp @ 5500 rpm
Torque: 369 lb-ft @ 1600 rpm
Basic Warranty
4 yr./ 50000 mi.
Length: 205.0 in. / Height: 71.8 in. / Width: 79.9 in.
Curb Weight: 5467 lbs.
Cargo Capacity, All Seats In Place: 17.4 cu.ft.
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At a Glance:
  • 10 Colors
  • 3 Trims
  • $76,000starting MSRP


Our experts’ favorite GLS-Class safety features:

Active Brake Assist
Alerts driver is a front collision is imminent and applies the brakes if the driver fails to respond.
Blind-Spot Assist
Warns if a vehicle is hiding in the GLS' blind spot and alerts passengers to approaching cars or cyclists before they open their door.
Active Steering Assist
Helps center the vehicle in its lane, even on tight or curvy roads.

Mercedes-Benz GLS-Class vs. the competition

2021 Mercedes-Benz GLS-Class

2021 Mercedes-Benz GLS-Class

2021 BMW X7

2021 BMW X7

Mercedes-Benz GLS-Class vs. BMW X7

BMW recently introduced its X7 as a rival to the GLS. The Mercedes has more cargo space and more rear headroom and legroom. It's also available with more engine configurations. That said, the X7 is still an appealing SUV. You can't go wrong with either.

Compare Mercedes-Benz GLS-Class & BMW X7 features 

Mercedes-Benz GLS-Class vs. Lincoln Navigator

The Lincoln Navigator is another one of our favorite large luxury SUVs. It might not have the brand cachet of a Mercedes, but it offers a more powerful base engine and more cargo space and it can tow more than the GLS. It's definitely worth test-driving both to compare for yourself.

Compare Mercedes-Benz GLS-Class & Lincoln Navigator features 

Mercedes-Benz GLS-Class vs. Cadillac Escalade

Cadillac redesigned its Escalade for 2021, giving it a more modern interior and enhanced ride comfort. Much like the Navigator, the Escalade offers a more powerful base engine, greater cargo space and a higher towing capacity than the GLS. But the Mercedes has a more premium feel and drives like a smaller vehicle than it is.

Compare Mercedes-Benz GLS-Class & Cadillac Escalade features 


Is the Mercedes-Benz GLS-Class a good car?

The Edmunds experts tested the 2021 GLS-Class both on the road and at the track, giving it a 8.6 out of 10. You probably care about Mercedes-Benz GLS-Class fuel economy, so it's important to know that the GLS-Class gets an EPA-estimated 16 mpg to 21 mpg, depending on the configuration. What about cargo capacity? When you're thinking about carrying stuff in your new car, keep in mind that the GLS-Class has 17.4 cubic feet of trunk space. And then there's safety and reliability. Edmunds has all the latest NHTSA and IIHS crash-test scores, plus industry-leading expert and consumer reviews to help you understand what it's like to own and maintain a Mercedes-Benz GLS-Class. Learn more

What's new in the 2021 Mercedes-Benz GLS-Class?

According to Edmunds’ car experts, here’s what’s new for the 2021 Mercedes-Benz GLS-Class:

  • New AMG GLS 63 model
  • Minor revisions to standard feature content
  • Part of the third GLS generation introduced for 2020
Learn more

Is the Mercedes-Benz GLS-Class reliable?

To determine whether the Mercedes-Benz GLS-Class is reliable, read Edmunds' authentic consumer reviews, which come from real owners and reveal what it's like to live with the GLS-Class. Look for specific complaints that keep popping up in the reviews, and be sure to compare the GLS-Class's average consumer rating to that of competing vehicles. Learn more

Is the 2021 Mercedes-Benz GLS-Class a good car?

There's a lot to consider if you're wondering whether the 2021 Mercedes-Benz GLS-Class is a good car. Edmunds' expert testing team reviewed the 2021 GLS-Class and gave it a 8.6 out of 10. Safety scores, fuel economy, cargo capacity and feature availability should all be factors in determining whether the 2021 GLS-Class is a good car for you. Learn more

How much should I pay for a 2021 Mercedes-Benz GLS-Class?

The least-expensive 2021 Mercedes-Benz GLS-Class is the 2021 Mercedes-Benz GLS-Class GLS 450 4MATIC 4dr SUV AWD (3.0L 6cyl Turbo gas/electric hybrid 9A). Including destination charge, it arrives with a Manufacturer's Suggested Retail Price (MSRP) of about $76,000.

Other versions include:

  • GLS 450 4MATIC 4dr SUV AWD (3.0L 6cyl Turbo gas/electric hybrid 9A) which starts at $76,000
  • AMG GLS 63 4dr SUV AWD (4.0L 8cyl Twincharger gas/electric hybrid 9A) which starts at $132,100
  • GLS 580 4MATIC 4dr SUV AWD (4.0L 8cyl Turbo gas/electric hybrid 9A) which starts at $98,850
Learn more

What are the different models of Mercedes-Benz GLS-Class?

If you're interested in the Mercedes-Benz GLS-Class, the next question is, which GLS-Class model is right for you? GLS-Class variants include GLS 450 4MATIC 4dr SUV AWD (3.0L 6cyl Turbo gas/electric hybrid 9A), AMG GLS 63 4dr SUV AWD (4.0L 8cyl Twincharger gas/electric hybrid 9A), and GLS 580 4MATIC 4dr SUV AWD (4.0L 8cyl Turbo gas/electric hybrid 9A). For a full list of GLS-Class models, check out Edmunds’ Features & Specs page. Learn more

More about the 2021 Mercedes-Benz GLS-Class

2021 Mercedes-Benz GLS-Class Overview

The 2021 Mercedes-Benz GLS-Class is offered in the following submodels: GLS-Class AMG GLS 63, GLS-Class SUV. Available styles include GLS 450 4MATIC 4dr SUV AWD (3.0L 6cyl Turbo gas/electric hybrid 9A), AMG GLS 63 4dr SUV AWD (4.0L 8cyl Twincharger gas/electric hybrid 9A), and GLS 580 4MATIC 4dr SUV AWD (4.0L 8cyl Turbo gas/electric hybrid 9A).

What do people think of the 2021 Mercedes-Benz GLS-Class?

Consumer ratings and reviews are also available for the 2021 Mercedes-Benz GLS-Class and all its trim types. Overall, Edmunds users rate the 2021 GLS-Class 5.0 on a scale of 1 to 5 stars. Edmunds consumer reviews allow users to sift through aggregated consumer reviews to understand what other drivers are saying about any vehicle in our database. Detailed rating breakdowns (including performance, comfort, value, interior, exterior design, build quality, and reliability) are available as well to provide shoppers with a comprehensive understanding of why customers like the 2021 GLS-Class.

Edmunds Expert Reviews

Edmunds experts have compiled a robust series of ratings and reviews for the 2021 Mercedes-Benz GLS-Class and all model years in our database. Our rich content includes expert reviews and recommendations for the 2021 GLS-Class featuring deep dives into trim levels and features, performance, mpg, safety, interior, and driving. Edmunds also offers expert ratings, road test and performance data, long-term road tests, first-drive reviews, video reviews and more.

Our Review Process

This review was written by a member of Edmunds' editorial team of expert car reviewers. Our team drives every car you can buy. We put the vehicles through rigorous testing, evaluating how they drive and comparing them in detail to their competitors.

We're also regular people like you, so we pay attention to all the different ways people use their cars every day. We want to know if there's enough room for our families and our weekend gear and whether or not our favorite drink fits in the cupholder. Our editors want to help you make the best decision on a car that fits your life.

What's a good price for a New 2021 Mercedes-Benz GLS-Class?

2021 Mercedes-Benz GLS-Class GLS 450 4MATIC 4dr SUV AWD (3.0L 6cyl Turbo gas/electric hybrid 9A)

The 2021 Mercedes-Benz GLS-Class GLS 450 4MATIC 4dr SUV AWD (3.0L 6cyl Turbo gas/electric hybrid 9A) can be purchased for less than the Manufacturer’s Suggested Retail Price (aka MSRP) of $77,050. The average price paid for a new 2021 Mercedes-Benz GLS-Class GLS 450 4MATIC 4dr SUV AWD (3.0L 6cyl Turbo gas/electric hybrid 9A) is trending $3,190 below the manufacturer’s MSRP.

Edmunds members save an average of $3,190 by getting upfront special offers. The estimated special offer price in your area is $73,860.

The average savings for the 2021 Mercedes-Benz GLS-Class GLS 450 4MATIC 4dr SUV AWD (3.0L 6cyl Turbo gas/electric hybrid 9A) is 4.1% below the MSRP.

Available Inventory:

We are showing 32 2021 Mercedes-Benz GLS-Class GLS 450 4MATIC 4dr SUV AWD (3.0L 6cyl Turbo gas/electric hybrid 9A) vehicle(s) available in the Ashburn area.

2021 Mercedes-Benz GLS-Class GLS 580 4MATIC 4dr SUV AWD (4.0L 8cyl Turbo gas/electric hybrid 9A)

The 2021 Mercedes-Benz GLS-Class GLS 580 4MATIC 4dr SUV AWD (4.0L 8cyl Turbo gas/electric hybrid 9A) can be purchased for less than the Manufacturer’s Suggested Retail Price (aka MSRP) of $99,900. The average price paid for a new 2021 Mercedes-Benz GLS-Class GLS 580 4MATIC 4dr SUV AWD (4.0L 8cyl Turbo gas/electric hybrid 9A) is trending $3,627 below the manufacturer’s MSRP.

Edmunds members save an average of $3,627 by getting upfront special offers. The estimated special offer price in your area is $96,273.

The average savings for the 2021 Mercedes-Benz GLS-Class GLS 580 4MATIC 4dr SUV AWD (4.0L 8cyl Turbo gas/electric hybrid 9A) is 3.6% below the MSRP.

Available Inventory:

We are showing 3 2021 Mercedes-Benz GLS-Class GLS 580 4MATIC 4dr SUV AWD (4.0L 8cyl Turbo gas/electric hybrid 9A) vehicle(s) available in the Ashburn area.

2021 Mercedes-Benz GLS-Class AMG GLS 63 4dr SUV AWD (4.0L 8cyl Twincharger gas/electric hybrid 9A)

The 2021 Mercedes-Benz GLS-Class AMG GLS 63 4dr SUV AWD (4.0L 8cyl Twincharger gas/electric hybrid 9A) can be purchased for less than the Manufacturer’s Suggested Retail Price (aka MSRP) of $133,150. The average price paid for a new 2021 Mercedes-Benz GLS-Class AMG GLS 63 4dr SUV AWD (4.0L 8cyl Twincharger gas/electric hybrid 9A) is trending $2,844 below the manufacturer’s MSRP.

Edmunds members save an average of $2,844 by getting upfront special offers. The estimated special offer price in your area is $130,306.

The average savings for the 2021 Mercedes-Benz GLS-Class AMG GLS 63 4dr SUV AWD (4.0L 8cyl Twincharger gas/electric hybrid 9A) is 2.1% below the MSRP.

Which 2021 Mercedes-Benz GLS-Classes are available in my area?

Shop Edmunds' car, SUV, and truck listings of over 6 million vehicles to find a cheap new, used, or certified pre-owned (CPO) 2021 Mercedes-Benz GLS-Class for sale near. There are currently 35 new 2021 GLS-Classes listed for sale in your area, with list prices as low as $79,110 and mileage as low as 0 miles. Simply research the type of car you're interested in and then select a car from our massive database to find cheap vehicles for sale near you. Once you have identified a used vehicle you're interested in, check the AutoCheck vehicle history reports, read dealer reviews, and find out what other owners paid for the 2021 Mercedes-Benz GLS-Class.

Can't find a new 2021 Mercedes-Benz GLS-Classs you want in your area? Consider a broader search.

Find a new Mercedes-Benz for sale - 5 great deals out of 8 listings starting at $14,849.

Why trust Edmunds?

Edmunds has deep data on over 6 million new, used, and certified pre-owned vehicles, including rich, trim-level features and specs information like: MSRP, average price paid, warranty information (basic, drivetrain, and maintenance), features (upholstery, bluetooth, navigation, heated seating, cooled seating, cruise control, parking assistance, keyless ignition, satellite radio, folding rears seats ,run flat tires, wheel type, tire size, wheel tire, sunroof, etc.), vehicle specifications (engine cylinder count, drivetrain, engine power, engine torque, engine displacement, transmission), fuel economy (city, highway, combined, fuel capacity, range), vehicle dimensions (length, width, seating capacity, cargo space), car safety, true cost to own. Edmunds also provides tools to allow shopper to compare vehicles to similar models of their choosing by warranty, interior features, exterior features, specifications, fuel economy, vehicle dimensions, consumer rating, edmunds rating, and color.

Should I lease or buy a 2021 Mercedes-Benz GLS-Class?

Is it better to lease or buy a car? Ask most people and they'll probably tell you that car buying is the way to go. And from a financial perspective, it's true, provided you're willing to make higher monthly payments, pay off the loan in full and keep the car for a few years. Leasing, on the other hand, can be a less expensive option on a month-to-month basis. It's also good if you're someone who likes to drive a new car every three years or so.

Check out Mercedes-Benz lease specials